/*
 * This file is part of Ext JS 3.4 Copyright (c) 2011-2013 Sencha Inc Contact: http://www.sencha.com/contact GNU General Public License Usage This file may be
 * used under the terms of the GNU General Public License version 3.0 as published by the Free Software Foundation and appearing in the file LICENSE included in
 * the packaging of this file. Please review the following information to ensure the GNU General Public License version 3.0 requirements will be met:
 * http://www.gnu.org/copyleft/gpl.html. If you are unsure which license is appropriate for your use, please contact the sales department at
 * http://www.sencha.com/contact. Build date: 2013-04-03 15:07:25
 */
/**
 * @class Ext.Element
 */
Ext.Element.addMethods(
{
	/**
	 * Stops the specified event(s) from bubbling and optionally prevents the default action
	 * 
	 * @param {String/Array} eventName an event / array of events to stop from bubbling
	 * @param {Boolean} preventDefault (optional) true to prevent the default action too
	 * @return {Ext.Element} this
	 */
	swallowEvent: function( eventName, preventDefault )
	{
		var me = this;
		function fn( e )
		{
			e.stopPropagation();
			if( preventDefault )
			{
				e.preventDefault();
			}
		}

		if( Ext.isArray(eventName) )
		{
			Ext.each(eventName, function( e )
			{
				me.on(e, fn);
			});
			return me;
		}
		me.on(eventName, fn);
		return me;
	},

	/**
	 * Create an event handler on this element such that when the event fires and is handled by this element, it will be relayed to another object (i.e., fired
	 * again as if it originated from that object instead).
	 * 
	 * @param {String} eventName The type of event to relay
	 * @param {Object} object Any object that extends {@link Ext.util.Observable} that will provide the context for firing the relayed event
	 */
	relayEvent: function( eventName, observable )
	{
		this.on(eventName, function( e )
		{
			observable.fireEvent(eventName, e);
		});
	},

	/**
	 * Removes worthless text nodes
	 * 
	 * @param {Boolean} forceReclean (optional) By default the element keeps track if it has been cleaned already so you can call this over and over. However, if
	 *        you update the element and need to force a reclean, you can pass true.
	 */
	clean: function( forceReclean )
	{
		var me = this, dom = me.dom, n = dom.firstChild, ni = -1;

		if( Ext.Element.data(dom, 'isCleaned') && forceReclean !== true )
		{
			return me;
		}

		while(n)
		{
			var nx = n.nextSibling;
			if( n.nodeType == 3 && !(/\S/.test(n.nodeValue)) )
			{
				dom.removeChild(n);
			}
			else
			{
				n.nodeIndex = ++ni;
			}
			n = nx;
		}

		Ext.Element.data(dom, 'isCleaned', true);
		return me;
	},

	/**
	 * Direct access to the Updater {@link Ext.Updater#update} method. The method takes the same object parameter as {@link Ext.Updater#update}
	 * 
	 * @return {Ext.Element} this
	 */
	load: function()
	{
		var updateManager = this.getUpdater();
		updateManager.update.apply(updateManager, arguments);

		return this;
	},

	/**
	 * Gets this element's {@link Ext.Updater Updater}
	 * 
	 * @return {Ext.Updater} The Updater
	 */
	getUpdater: function()
	{
		return this.updateManager || (this.updateManager = new Ext.Updater(this));
	},

	/**
	 * Update the innerHTML of this element, optionally searching for and processing scripts
	 * 
	 * @param {String} html The new HTML
	 * @param {Boolean} loadScripts (optional) True to look for and process scripts (defaults to false)
	 * @param {Function} callback (optional) For async script loading you can be notified when the update completes
	 * @return {Ext.Element} this
	 */
	update: function( html, loadScripts, callback )
	{
		if( !this.dom )
		{
			return this;
		}
		html = html || "";

		if( loadScripts !== true )
		{
			this.dom.innerHTML = html;
			if( typeof callback == 'function' )
			{
				callback();
			}
			return this;
		}

		var id = Ext.id(), dom = this.dom;

		html += '<span id="' + id + '"></span>';

		Ext.lib.Event.onAvailable(id, function()
		{
			var DOC = document, hd = DOC.getElementsByTagName("head")[0], re = /(?:<script([^>]*)?>)((\n|\r|.)*?)(?:<\/script>)/ig, srcRe = /\ssrc=([\'\"])(.*?)\1/i, typeRe = /\stype=([\'\"])(.*?)\1/i, match, attrs, srcMatch, typeMatch, el, s;

			while((match = re.exec(html)))
			{
				attrs = match[1];
				srcMatch = attrs ? attrs.match(srcRe) : false;
				if( srcMatch && srcMatch[2] )
				{
					s = DOC.createElement("script");
					s.src = srcMatch[2];
					typeMatch = attrs.match(typeRe);
					if( typeMatch && typeMatch[2] )
					{
						s.type = typeMatch[2];
					}
					hd.appendChild(s);
				}
				else if( match[2] && match[2].length > 0 )
				{
					if( window.execScript )
					{
						window.execScript(match[2]);
					}
					else
					{
						window.eval(match[2]);
					}
				}
			}

			el = DOC.getElementById(id);
			if( el )
			{
				Ext.removeNode(el);
			}

			if( typeof callback == 'function' )
			{
				callback();
			}
		});
		dom.innerHTML = html.replace(/(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)/ig, "");
		return this;
	},

	// inherit docs, overridden so we can add removeAnchor
	removeAllListeners: function()
	{
		this.removeAnchor();
		Ext.EventManager.removeAll(this.dom);
		return this;
	},

	/**
	 * Creates a proxy element of this element
	 * 
	 * @param {String/Object} config The class name of the proxy element or a DomHelper config object
	 * @param {String/HTMLElement} renderTo (optional) The element or element id to render the proxy to (defaults to document.body)
	 * @param {Boolean} matchBox (optional) True to align and size the proxy to this element now (defaults to false)
	 * @return {Ext.Element} The new proxy element
	 */
	createProxy: function( config, renderTo, matchBox )
	{
		config = (typeof config == 'object') ? config :
		{
			tag: "div",
			cls: config
		};

		var me = this, proxy = renderTo ? Ext.DomHelper.append(renderTo, config, true) : Ext.DomHelper.insertBefore(me.dom, config, true);

		if( matchBox && me.setBox && me.getBox )
		{ // check to make sure Element.position.js is loaded
			proxy.setBox(me.getBox());
		}
		return proxy;
	}
});

Ext.Element.prototype.getUpdateManager = Ext.Element.prototype.getUpdater;
